A randomly selected student who participated in the survey is selected. Let event cap s is equal to the student plays a sport and let event cap b is equal to favorite color is blue, green, or purple. What is the value of cap p times open paren cap b divides cap s close paren ?
Suppose a vehicle is randomly selected. Let event cap c is equal to convertible and cap r is equal to red. What is the value of cap p times open paren cap r divides cap c close paren ?
Suppose an animal is randomly selected. Let event cap c is equal to cat and let event cap n is equal to nap. What is the value of cap p times open paren cap c divides cap n close paren ?
A recent survey of people who eat salad suggest that 78 percent like tomatoes on their salad, 49 percent like cheese on their salad, and 36 percent like both tomatoes and cheese on their salad. Suppose a person who eats salad is selected at random, and find they like cheese on their salad. What is the probability that the person also likes tomatoes on their salad?
According to a recent survey of adults, 38 percent say the almond is their favorite nut. The adults were also asked where they lived. Of the 19 percent of those who responded that they live in California, 40 percent chose the almond as their favorite nut. Is liking almonds independent of residency?
A recent survey found that 65 percent of high school students were currently enrolled in a math class, 43 percent were currently enrolled in a science class, and 13 percent were enrolled in both a math and a science class. Suppose a high school student who is enrolled in a math class is selected at random. What is the probability that the student is also enrolled in a science class?
A recent survey has shown that 68 percent of professional photos are of humans, 39 percent are of pets, and 17 percent are of both humans and pets. Suppose a professional photo is selected at random and it is of a human. What is the probability that the photo also has a pet?
A department store’s survey suggests that 76 percent of shoppers buy food, 49 percent buy clothes, and 28 percent buy both food and clothes. Suppose a shopper is selected from the store at random and learn that they buy clothes. What is the probability that the shopper also buys food?
According to a recent survey of first-year high school students, 28 percent chew gum daily. The students were also asked if they had recently gotten a cavity filled at the dentist. Of the 47 percent of first-year students who responded that they had a cavity recently filled, only 39 percent chewed gum daily. Is chewing gum independent of having a cavity filled recently?
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